<template>
    <div id="en">
        <ul>
            <li v-for="(item, index) in list" :key="item.id" @click="activeIndex = index">
                <a :class="{ active: index === activeIndex }" href="#">{{ item.name }}</a>
            </li>
        </ul>

    </div>
</template>

<script>
    export default {
        name: "4-v-tab的active",
        data() {
            return {
                activeIndex: 2, // 记录高亮
                list: [
                    { id: 1, name: '京东秒杀' },
                    { id: 2, name: '每日特价' },
                    { id: 3, name: '品类秒杀' }
                ]
            }
        },
        methods: {

        }
    }
</script>

<style scoped>
    * {
        margin: 0;
        padding: 0;
    }
    ul {
        display: flex;
        border-bottom: 2px solid #e01222;
        padding: 0 10px;
    }
    li {
        width: 100px;
        height: 50px;
        line-height: 50px;
        list-style: none;
        text-align: center;
    }
    li a {
        display: block;
        text-decoration: none;
        font-weight: bold;
        color: #333333;
    }
    li a.active {
        background-color: #e01222;
        color: #fff;
    }

</style>